Skip Navigation

Johns Hopkins Center for Gun Violence Prevention and Policy


Abigail Baum HeadshotAbigail Baum, MPH, MSW

Abigail Baum is a doctoral student in Health and Public Policy in the department of Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health. Baum's research interests include supporting the integration of health into systems and policies in various social sectors and health inequities across neighborhoods. Her dissertation research is focusing on mechanisms through which people most affected by social welfare policy participate in the decision-making process from design to implementation and evaluation.

Prior to coming to Hopkins, Baum was a Senior Associate on the Health Impact Project, a collaboration of the Robert Wood Johnson Foundation and The Pew Charitable Trusts, where she worked on evaluating Health Impact Assessments (HIA), conducting an HIA on federal educational policy, leading an initiative to scale health considerations into non-health care organizational operations. Before joining the Health Impact Project, Baum served as a research associate at the Metropolitan Housing and Communities Policy Center at the Urban Institute on projects at the intersection of housing, community, and health, including a national assessment of Native American housing, technical assistance to building evaluation capacity for nonprofits, and an evaluation of supportive housing with families involved in the child welfare system. She holds a Master of Public Health and Master of Social Work from the Brown School at Washington University in St. Louis in 2012, and a BA from Carleton College in 2008, majoring in American Studies and Educational Studies.

Taylor Johnson

Taylor Johnson

Taylor Johnson is an undergraduate student at Johns Hopkins studying public health. As a Research Assistant with the Center for Gun Policy and Research, she is currently involved in multiple projects. She currently assists with a systematic literature review, supports the evaluation of a community-based program bringing together youth and police officers, and helps with the Center’s Coursera MOOC.  Her research interests include firearm policy, injury prevention, and the intersection of these areas with mental health.


Nicholas Meyerson HeadshotNicholas Meyerson

Nicholas Meyerson is a doctoral student in Health and Public Policy in the Department of Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health.  His research interests include firearm policy, racial/ethnic disparities in firearm violence, youth violence prevention, and spatio-temporal trends in firearm violence. Prior to coming to Hopkins, Meyerson was a research data analyst for the Health Disparities & Public Policy Program at Northwestern University Feinberg School of Medicine. There he worked on the Northwestern Juvenile Project, a longitudinal study of long-term outcomes and mental health needs of youth in detention.   

 Meyerson received his MA in clinical psychology from Northwestern University in 2018, and a BS in criminal justice from the University of New Haven in 2017. 

Julie Ward HeadshotJulie Ward, MN, RN, PHNA-BC

Julie Ward is a doctoral student in Health and Public Policy in the department of Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health.  Her research interests include firearm policy and strategies to prevent violence and promote wellbeing in the workplace.

Prior to coming to Hopkins, Ward was assistant professor of Clinical Nursing at Oregon Health & Science University and a registered nurse with over a decade of experience in emergency and urgent care services, occupational health and wellness, and community-based health promotion program design and management.  She is a board-certified Advanced Public Health Nurse.

Ward received her Master of Nursing in Community Health Systems, specializing in Occupational and Environmental Health, from the University of Washington.  She additionally holds a BS in Nursing from the University of Washington and a BA in Spanish from the University of Oregon’s Robert D. Clark Honors College.

Mudia Uzzi HeadshotMudia Uzzi

Mudia Uzzi is a PhD candidate in the Department of Health, Behavior and Society. His current research examines the underlying structural drivers of community violence and trauma in Baltimore City. Some of the topic areas Uzzi explores include redlining, racialized economic segregation, and the build and social environment of neighborhoods. His ultimate goal is to develop research, policies and programs that promote safer and healthier urban communities. Prior to starting his doctoral studies, Uzzi obtained a MSc in Control of Infectious Diseases from the London School of Hygiene and Tropical Medicine. He also worked on several health equity research and evaluation projects in the United States and United Kingdom.